Vliv doby izotermické transformace na statické a únavové vlastnosti izotermicky zušlechtěné litiny s kuličkovým grafitem

Influence of Isothermal Dwell on Tensile and Fatigue Properties of Austempered Ductile Iron.

článek ve sborníku ve WoS nebo Scopus

en

Thanks to extraordinarily favourable both mechanical and technological properties, austempered ductile iron is ranked with very prospective structural materials. Its structure and consequently also mechanical properties can be substantially influenced by the conditions of isothermal transformation. The dependence between matrix composition and mechanical (static as well as fatigue) properties of unalloyed nodular cast iron, which was isothermally heat treated at transformation temperature of 380 °C, is studied in the present contribution.

Díky svým výborným jak mechanickým tak technologickým vlastnostem se izotermicky zušlechtěná litina s kuličkovým grafitem řadí mezi velmi perspektivní materiály. Její struktura a tedy mechanické vlastnosti mohou být ovlivněny podmínkymi iotermické transformace. V tomto příspěvku byla studována závislost mezi strukturou matrice a mechanickými vlastnostmi nelegované litiny s kuličkovým grafitem, po izotermické transformaci při teplotě 380°C.

Thanks to extraordinarily favourable both mechanical and technological properties, austempered ductile iron is ranked with very prospective structural materials. Its structure and consequently also mechanical properties can be substantially influenced by the conditions of isothermal transformation. The dependence between matrix composition and mechanical (static as well as fatigue) properties of unalloyed nodular cast iron, which was isothermally heat treated at transformation temperature of 380 °C, is studied in the present contribution.

Austempered ductile iron; Isothermal transformation; Retained austenite; Bainite

23.06.2004

VUT Brno

Switzerland

0-87849-964-4

Material Science Forum

482

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